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Characterisation of high-altitude Artemia populations from the Qinghai-Tibet Plateau, PR China
Van Stappen, G.; Sui, L.; Xin, N.; Sorgeloos, P. (2003). Characterisation of high-altitude Artemia populations from the Qinghai-Tibet Plateau, PR China. Hydrobiologia 500(1-3): 179-192. dx.doi.org/10.1023/A:1024658604530
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    China, People's Rep., Qinghai Prov.
    Dimensions > Height
    Tibetan Plate
    Water bodies > Inland waters > Lakes > Salt lakes
    Artemia Leach, 1819 [WoRMS]
    Marien/Kust
Author keywords
    Artemia; salt lakes; Qinghai-Tibet plateau; China; altitude
Auteurs  Top 
  • Van Stappen, G.
  • Sui, L.
  • Xin, N.
  • Sorgeloos, P., meer
Abstract
    The brine shrimp Artemia was discovered in a number of saline lakes on the Qinghai-Tibet Plateau, widely diverging in chemical composition. Several lakes were athalassohaline, with relatively high amounts of trace elements. Common environmental factors are their high altitude (exceeding 4500 m) and the low average annual temperatures. A number of Artemia populations in this area were analysed to assess their preference for low temperatures and an athalassohaline medium. Furthermore, their characteristics were compared with Artemia tibetiana, the species recently described for one lake in this area. All samples contained a variable mixture of parthenogenetic and bisexual individuals. A cross-breeding test of the sample from Jingyu Lake showed cross-fertility both with A. tibetiana and A. sinica. All populations showed similarities to A. tibetiana: a large cyst diameter and naupliar length, high HUFA content and a high tolerance to low temperatures, as compared to the control A. franciscana samples. These can thus be considered as recurrent characteristics of the populations from the high-altitude low-temperature environment on the Qinghai-Tibet Plateau, although further research is needed to identify their exact species status.
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